[PATCH] D31724: [SelectionDAG] Remove special call to LHS computeKnownBits for ANDs with constant RHS.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

Correction, the combine-and problem seems to be because SimplifyDemandedBits only considers scalar constants for shift amount, not constant splats from a build_vector.


https://reviews.llvm.org/D31724